SCHAMROTH, L Intermittent ventricular parasystole with observations on its relationship to extrasystolic bigeminy. [electronic resource] - The American journal of cardiology Jun 1961 - 799-809 p. digital Publication Type: Journal Article ISSN: 0002-9149 Standard No.: 10.1016/0002-9149(61)90398-8 doi Subjects--Topical Terms: Cardiovascular Physiological PhenomenaHeart RateHeart SoundsHumansParasystolePulse